topic Re: AD functionality level with CIFS in ONTAP Discussions

AD functionality level with CIFS

JA_THOMAS01 — Wed, 04 Jun 2025 13:12:34 GMT

We currently have a project underway to upgrade our domain functionality level from Server 2008R2 to Server 2016. Trying to find a reference as to what versions of ONTAP are supported or any thing I need to be aware of when this upgrade occurs. Does anyone have any experience doing this, or point me in the direction of any resources?

Running a combination of ONTAP 9.0 - 9.3 across multiple sites. All clusters serve CIFS file shares, joined to the domain in question.

Thanks,

James

Re: AD functionality level with CIFS

AndreUnterberg — Wed, 24 Oct 2018 19:00:21 GMT

Hi JA_THOMAS01,

Have no fear updating your domain functional level. Just make sure every CIFS client in your AD is using the correct SMB version.

You can find supported versions in ONTAP here.

https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.cdot-famg-cifs%2FGUID-4E341D78-8D4F-4972-9ED4-A2A8585A1388.html

Kind regards

Andre